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Author Topic: Where does the information 'go' after it has been deleted on a computer?  (Read 17831 times)

Offline Karen W.

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So say someone  wants to keep their information to themselves and very private... but wishes to put info on anther computer and give old computer away like was suggested ..or sell it...... can the info be deleted to the point to where the most skilled computer analysts  could not retrieve info...and still be left witha fully functional Harddrive?

What if you wiped the hard drive? Would the info still be there ling in wait for a specialist to hook it up to somethging and retrieve all your personal info even though you wiped the hard drive?
 

Offline Madidus_Scientia

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I reckon if you formatted the drive, filled it with junk data (just put like 1000 copies of a largish non-sensitive file onto it) and then formatted it again I don't think anyone would get any data off it.

There's probably programs that will do this for you.
 

Offline Karen W.

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Thats Interesting...thanks.
 

Offline MonikaS

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So say someone  wants to keep their information to themselves and very private... but wishes to put info on anther computer and give old computer away like was suggested ..or sell it...... can the info be deleted to the point to where the most skilled computer analysts  could not retrieve info...and still be left witha fully functional Harddrive?

What if you wiped the hard drive? Would the info still be there ling in wait for a specialist to hook it up to somethging and retrieve all your personal info even though you wiped the hard drive?

Yes you can do that. For normal security standards MSs way of doing it is enough. But even with that method it is possible to recover some data.

There are special programs who achieve an even higher standard of security.
Here's one of those. It won't work for a computer with only one disk, but is great for deleting external disks or USB sticks.
Here's another one. You boot from a floppy or CD or USB Stick and this DOS based utility erases your harddisk. I've used a similar program which is only available in German to sanitize a whole bunch of computers for a company. They wanted to give them to a charity, but had some sensitive information stored on them.
 

Offline syhprum

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I use dual boot between XP and Windows 7, its horses for courses XP is slower but I like the GUI better.
I have done my best to make Windows 7 look like XP but I seldom find it has any significant advantage over XP.
I notice with all the updates you get for XP it begins to behave like Windows 7 in some ways.
 

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